Pyranthrene

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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
65.0750.Dorofeeva O.V., 1988Recommended values were calculated statistically mechanically using force field approximation for polycyclic aromatic hydrocarbons to estimate the needed vibrational frequencies (see also [ Dorofeeva O.V., 1986, Moiseeva N.F., 1989]). These functions are reproduced in the reference book [ Frenkel M., 1994].
113.36100.
170.55150.
234.78200.
334.23273.15
368.1 ± 7.0298.15
370.53300.
496.54400.
601.51500.
685.36600.
752.06700.
805.69800.
849.39900.
885.421000.
915.441100.
940.641200.
961.971300.
980.121400.
995.671500.

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference
194.5 ± 6.7595.MEInokuchi, Shiba, et al., 1952

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference
6.98CTSKuroda, 1964
6.99CTSBriegleb, 1964
6.69CTSMatsen, 1956

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin UNION CARBIDE CORPORATION (CARBON PRODUCTS DIVISION)
Source reference COBLENTZ NO. 3562
Date Not specified, most likely prior to 1970
State SOLID (KBr PELLET)
Instrument Not specified, most likely a prism, grating, or hybrid spectrometer.
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY
Melting point 372-373 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, NIST Free Links, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Dorofeeva O.V., 1988
Dorofeeva O.V., Thermodynamic Properties of Polycyclic Aromatic Hydrocarbons in the Gaseous Phase. Institute for High Temperatures, USSR Academy of Sciences, Preprint No.1-238 (in Russian), Moscow, 1988. [all data]

Dorofeeva O.V., 1986
Dorofeeva O.V., On calculation of thermodynamic properties of polycyclic aromatic hydrocarbons, Thermochim. Acta, 1986, 102, 59-66. [all data]

Moiseeva N.F., 1989
Moiseeva N.F., Development of Benson group additivity method for estimation of ideal gas thermodynamic properties of polycyclic aromatic hydrocarbons, Thermochim. Acta, 1989, 153, 77-85. [all data]

Frenkel M., 1994
Frenkel M., Thermodynamics of Organic Compounds in the Gas State, Vol. I, II, Thermodynamics Research Center, College Station, Texas, 1994, 1994. [all data]

Inokuchi, Shiba, et al., 1952
Inokuchi, Hiroo; Shiba, Sukekuni; Handa, Takashi; Akamatu, Hideo, Heats of Sublimation of Condensed Polynuclear Aromatic Hydrocarbons, Bull. Chem. Soc. Jpn., 1952, 25, 5, 299-302, https://doi.org/10.1246/bcsj.25.299 . [all data]

Kuroda, 1964
Kuroda, H., Ionization potentials of polycyclic aromatic hydrocarbons, Nature, 1964, 201, 1214. [all data]

Briegleb, 1964
Briegleb, G., Electron affinity of organic molecules, Angew. Chem. Intern. Ed., 1964, 3, 617. [all data]

Matsen, 1956
Matsen, F.A., Electron affinities, methyl affinities, and ionization energies of condensed ring aromatic hydrocarbons, J. Chem. Phys., 1956, 24, 602. [all data]


Notes

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